/*var self = require("sdk/self");

var buttons;
try {
	buttons = require('sdk/ui/button/action');
} catch (ex) {
	buttons = null;
}
var tabs = require("sdk/tabs");

const {Cc, Ci, Cu, Cr} = require("chrome");*/

/*if (buttons != null) {//null -> 24
	var button = buttons.ActionButton({
	  id: "mozilla-link",
	  label: "Befator Inc. Secure-Web!",
	  icon: {
		"16": "./icon-64.png",
		"32": "./icon-64.png",
		"64": "./icon-64.png"
	  },
	  onClick: handleClick
	});
} else {
	var widgets = require("sdk/widget")
	var widget = widgets.Widget({
		id: "mozilla-link",
		label: "Befator Inc. Secure-Web!",
		contentURL: "resource://befatoraddon-at-jetpack/befatoraddon/data/icon-64.png",
		onClick: handleClick
	});
}*/
var EXPORTED_SYMBOLS = ["befatorUpdate", "handleBefatorClick"];

//console.log("Befator Inc grüßt Sie!");

var befatorWindow;

function handleBefatorClick(window) {
	try {
		window.Cu.import('resource://gre/modules/Services.jsm');
	} catch (e) {//e -> 3.6
		var Services = {
			prompt: window.Cc["@mozilla.org/embedcomp/prompt-service;1"].getService(Components.interfaces.nsIPromptService)
		}
	}
	
	let request = new window.XMLHttpRequest();
	request.onreadystatechange = function() {
		if (request.readyState == 4) {
			Services.prompt.alert(window, "Befator Inc Secure-Web", request.responseText);
		}
	}
	request.open("GET", "http://proxy.befatorinc.de:3636/api/progressMessage?currentPage=" + window.document.getElementById("content").selectedBrowser.contentDocument.location.href.replace("http://proxy.befatorinc.de:3636/proxy/", ""), true);
	request.send(null);
	//tabs.open("https://wiki.befatorinc.de/index.php/Hauptseite");
}

function handleWindow(window) {
	if (window.document.readyState == "complete") {
		befatorWindow.console.log("Window!");
		Components.utils.import("resource://befatoraddon/main.jsm");
		onBefatorWindow(window);
	} else {
		window.addEventListener('load', function(e) {
			handleWindow(window);
		}, false);
	}
}

//https://udn.realityripple.com/docs/Archive/Add-ons/Tabbed_browser#Getting_the_tab_that_fires_the_http-on-modify-request_notification
function loadContextGoodies(httpChannel) {
    //httpChannel must be the subject of http-on-modify-request QI'ed to nsiHTTPChannel as is done on line 8 "httpChannel = subject.QueryInterface(Ci.nsIHttpChannel);"
    //start loadContext stuff
    var loadContext;
    try {
        var interfaceRequestor = httpChannel.notificationCallbacks.QueryInterface(befatorWindow.Ci.nsIInterfaceRequestor);
        //var DOMWindow = interfaceRequestor.getInterface(Components.interfaces.nsIDOMWindow); //not to be done anymore because: https://developer.mozilla.org/docs/Updating_extensions_for_Firefox_3.5#Getting_a_load_context_from_a_request //instead do the loadContext stuff below
        try {
            loadContext = interfaceRequestor.getInterface(befatorWindow.Ci.nsILoadContext);
        } catch (ex) {
            try {
                loadContext = subject.loadGroup.notificationCallbacks.getInterface(befatorWindow.Ci.nsILoadContext);
            } catch (ex2) {}
        }
    } catch (ex0) {}

    if (!loadContext) {
        //no load context so dont do anything although you can run this, which is your old code
        //this probably means that its loading an ajax call or like a google ad thing
        return null;
    } else {
        var contentWindow = loadContext.associatedWindow;
        if (!contentWindow) {
            //this channel does not have a window, its probably loading a resource
            //this probably means that its loading an ajax call or like a google ad thing
            return null;
        } else {
			try {
				var aDOMWindow = contentWindow.top.QueryInterface(befatorWindow.Ci.nsIInterfaceRequestor)
					.getInterface(befatorWindow.Ci.nsIWebNavigation)
					.QueryInterface(befatorWindow.Ci.nsIDocShellTreeItem)
					.rootTreeItem
					.QueryInterface(befatorWindow.Ci.nsIInterfaceRequestor)
					.getInterface(befatorWindow.Ci.nsIDOMWindow);
				var gBrowser = aDOMWindow.gBrowser;
				var aTab = gBrowser._getTabForContentWindow(contentWindow.top); //this is the clickable tab xul element, the one found in the tab strip of the firefox window, aTab.linkedBrowser is same as browser var above //can stylize tab like aTab.style.backgroundColor = 'blue'; //can stylize the tab like aTab.style.fontColor = 'red';
				var browser = aTab.linkedBrowser; //this is the browser within the tab //this is where the example in the previous section ends
				return {
					aDOMWindow: aDOMWindow,
					gBrowser: gBrowser,
					aTab: aTab,
					browser: browser,
					contentWindow: contentWindow
				};
			} catch(e) {
				return null;
			}
        }
    }
}

var init = false;
function befatorUpdate(newWindow) {
	if (!init) {
		befatorWindow = newWindow;
		init = true;
		try {
			Components.utils.import('resource://gre/modules/Services.jsm');
		} catch(e) {//e -> 3.6
			var Services = {
				obs: Components.classes["@mozilla.org/observer-service;1"].getService(Components.interfaces.nsIObserverService),
				prefs: Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefService).getBranch(""),
				io: Components.classes["@mozilla.org/network/io-service;1"].getService(Components.interfaces.nsIIOService)
			}
		}

		var observers = {
			'http-on-modify-request': {
				observe: function (aSubject, aTopic, aData) {
					//console.log('http-on-modify-request: aSubject = ' + aSubject + ' | aTopic = ' + aTopic + ' | aData = ' + aData);
					var httpChannel = aSubject.QueryInterface(befatorWindow.Ci.nsIHttpChannel);
					var requestUrl = httpChannel.URI.spec.toLowerCase();
					//befatorWindow.console.log("Requesting: " + requestUrl);
					//for (var i=0; i<urls_block.length; i++) {
					//if (requestUrl.indexOf(urls_block[i]) > -1) {
					//httpChannel.cancel(Cr.NS_BINDING_ABORTED); //this aborts the load
					var contains = false;
					if (requestUrl.includes != undefined) {
						contains = requestUrl.includes("befatorinc.de:3636/");
					} else if (requestUrl.contains != undefined) {
						contains = requestUrl.contains("befatorinc.de:3636/");
					} else {
						contains = requestUrl.indexOf("befatorinc.de:3636/") != -1;
					}
					
					if (!contains) {
						if (httpChannel.redirectTo != undefined) {//undefined -> 17
							httpChannel.redirectTo(Services.io.newURI("http://proxy.befatorinc.de:3636/proxy/" + requestUrl, null, null/*redir_obj[urls_block[i]], null, null)*/)); //can redirect with this line, if dont want to redirect and just block, then uncomment this line and comment out line above (line 17)
						} else {
							httpChannel.cancel(befatorWindow.Cr.NS_BINDING_ABORTED);
							var goodies = loadContextGoodies(httpChannel);
							if (goodies && requestUrl.indexOf("web-static.archive.org") == -1) {
								goodies.contentWindow.location.href = "http://proxy.befatorinc.de:3636/proxy/" + requestUrl;
							} else {
								//error?
							}
							//Components.utils.import("chrome://befatoraddon/content/ChannelReplacement.jsm");
							//ChannelReplacement.runWhenPending(httpChannel, function() {
								//var cr = new ChannelReplacement(httpChannel, Services.io.newURI("http://proxy.befatorinc.de:3636/proxy/" + requestUrl, null, null));
								//cr.replace(true, null);
								//cr.open();
							  //});
						}
					}
					//break;
					//}
					//}
				},
				reg: function () {
					Services.obs.addObserver(observers['http-on-modify-request'], 'http-on-modify-request', false);
				},
				unreg: function () {
					Services.obs.removeObserver(observers['http-on-modify-request'], 'http-on-modify-request');
				}
			},
			'homepage-pref': {
				observe: function (aSubject, aTopic, aData) {
					//befatorWindow.console.log("HomePage!");
					if (Services.prefs.getCharPref("browser.startup.homepage") != "about:home") {
						Services.prefs.setCharPref("browser.startup.homepage", "about:home");
					}
				},
				reg: function () {
					var pref = Services.prefs;
					if (pref.addObserver == undefined) {//undefined -> 3.6
						pref = pref.QueryInterface(Components.interfaces.nsIPrefBranch2)
					}
					pref.addObserver("browser.startup.homepage", observers['homepage-pref'], false);
				},
				unreg: function () {
					//Services.obs.removeObserver(observers['http-on-modify-request'], 'http-on-modify-request');
				}
			},
			'toplevel-window-ready': {
				observe: function (aSubject, aTopic, aData) {
					handleWindow(aSubject);
				},
				reg: function () {
					Services.obs.addObserver(observers['toplevel-window-ready'], 'toplevel-window-ready', false);
				},
				unreg: function () {
					Services.obs.removeObserver(observers['toplevel-window-ready'], 'toplevel-window-ready');
				}
			}
		};

		//console.log("Startup");
			
		for (var o in observers) {
			observers[o].reg();
		}
		
		handleWindow(befatorWindow);
	}
}